Q: What is the sum of all factors of the number 1,691,430 excluding 1,691,430?

Why is 2,681,274 the sum of all factors of 1,691,430, excluding 1,691,430?

The factors of the number 1,691,430 are: 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 4337, 8674, 13011, 21685, 26022, 43370, 56381, 65055, 112762, 130110, 169143, 281905, 338286, 563810, 845715, 1691430.

If you add them up, you will get the total of 1,691,432. Now subtract 1,691,430 to get 2,681,274

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